He studied comets, variable stars, galaxies and the evolution of the universe.

The spectrograph was to be used instead to study extended, low-surface-brightness gaseous nebulae or irregular galaxies.

It studied planetary atmospheres, the atmospheres of red giant stars, and galaxies.

It is also possible to get information from studying old rocks and also studying stars and galaxies.

It was bright time, time to study stars and nearby galaxies.

For instance, physicists can study stars, planets and galaxies but could also study small pieces of matter, such as atoms and electrons.

Many of these objects (particularly Arp 220) are also used as spectral templates for studying high-redshift galaxies.

Scientists use it to study our Solar System, interstellar dust and gas, and distant galaxies.

Astronomers expect to use the telescope to study stars and galaxies so distant that their light has been traveling toward Earth for 14 billion years.

Observations of infrared emissions by celestial objects, vital for studying distant galaxies, are especially clear on the extinct volcano.